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Published on: October 28, 2020
Hand activities in infantile masturbation: a video analysis of 13 cases
Jonas Kjeldbjerg Hansen1, Thomas Balslev
1Department of Paediatrics, Regional Hospital Viborg, Heibergs Alle 4, DK-8800 Viborg, Skejby, Denmark. jonas.k.hansen@viborg.rm.dk
Insights
Recognizing distinct hand movements in infantile masturbation can prevent misdiagnosis. This study details five common hand activity patterns observed in children, aiding accurate diagnosis and avoiding unnecessary medical tests.
Area of Science:
- Pediatrics
- Neurology
- Child Psychology
Background:
- Infantile masturbation is a normal behavior variant.
- Sudden onset and associated symptoms can mimic epileptic seizures.
- Misdiagnosis leads to unnecessary hospitalizations and tests.
Purpose of the Study:
- To describe characteristic hand activities in infantile masturbation.
- To differentiate infantile masturbation from other conditions.
Main Methods:
- Video recordings of 13 children (2 boys, 11 girls) with infantile masturbation were analyzed.
- Hand and finger positions and movements during episodes were documented.
Main Results:
- Five distinct hand activity patterns were identified: fisting, grasping, "piano playing" movements, genital pressure, and bimanual item manipulation.
- Fisting was more common in younger children, while bimanual manipulation was observed in older children.
Conclusions:
- Identifying these specific hand activity patterns can aid in diagnosing infantile masturbation.
- This recognition may reduce the likelihood of misdiagnosis and unnecessary investigations.
Background:
Infantile masturbation is considered a variant of normal behaviour. The abrupt and spontaneous onset, altered sensorium and autonomic phenomena during episodes may suggest an epileptic fit. Therefore, children with infantile masturbation are often admitted to hospital and undergo unnecessary tests. The purpose of the present study was to provide a detailed description of hand activities in infantile masturbation.
Methods:
The authors reviewed video recordings of 2 boys and 11 girls with infantile masturbation. Position, movements and activities of hands and fingers during episodes were registered.
Results:
Five patterns of hand activities were registered: Fisting (four infants), grasping of toys, furniture or clothing (ten infants), chorea-like "piano playing" hand movements (two infants), pressure over the diaper/genital region (one infant) and bimanual manipulation of items (four infants). Fisting was primarily observed in the younger infants, and bimanual manipulation was primarily seen in the older infants.
Conclusions:
Recognizing one or more of the five distinct patterns of hand activities in infantile masturbation may help establishing the diagnosis.

